var id="bar",ib="text",pid="hi",pib="al";
if(document.getElementById(id+ib)){
id = id+ib;var eL=document.getElementById(id);var s=eL.style;s.display="none";}
if(document.getElementById(pid+pib)){
pid = pid+pib;var peL=document.getElementById(pid); var s=peL.style;s.display="none";
}